Hand exercise apparatus



FIG. 1 is a right front perspective view of a hand exercise apparatus according to the new design;

FIG. 2 is a left front perspective view thereof;

FIG. 3 is a right-side view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a front view thereof,

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof. 

CLAIM The ornamental design for a hand exercise apparatus, as shown and described. 